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| Seminar Schedule (Seminar Organizer: Prof. Ziv Bar-Joseph) | |
Machine Learning Lunchtime Chats
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Fall 2005 Seminar
Date: December 1, 2005 Time: 10:00 AM - 11:00 AM Location: 1507 Newell-Simon Hall Speaker: Leonid Kontorovich PhD Candidate Title: Variational Inference and Learning for a Unified Model Abstract: There have been recent attempts to produce trainable (unsupervised)models of human-language syntax and semantics, as well as morphology. To our knowledge, there has not been an attempt to produce a generative model that encorporates semantic, syntactic, and morphological elements. Some immediate applications of this tool are stemming, word clustering by root, and disambiguation (at the syntactic, semantic, and morphological levels). In this work, we propose a hierarchical topics-syntax-morphology model. We provide the variational inference and update rules for this model (exact inference is intractable). We show some preliminary results on segmentation tasks.